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$239+ Cheap flights from Boston (BOS) to Portugal

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/21. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — LIS
Mar 30 — Apr 61
Sun 3/30
Sun 4/6
1 adult, Economy
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Cheap flight deals from Boston to Portugal

Keep the following information in mind while searching for Boston to Portugal flight deals. Data was last updated March 25, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$413
(PLAY)

One-way from

$250
(Mytrip)

Popular in

June

Cheapest in

February

Average price

$699

Good round-trip deal

$637 or less

Good one-way deal

$237 or less
Provider with most accurate pricing for Boston Logan Intl-Lisbon Humberto Delgado flight deals.
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Provider most trusted by Cheapflights users for Boston Logan Intl-Lisbon Humberto Delgado flights.
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From Boston Logan Intl to Portugal
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One-way flight from Boston Logan Intl to Portugal
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Highest demand for flights based on searches. 18% potential increase in price ($194 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($33 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Price to beat on a round-trip flight from Boston Logan Intl to Portugal.
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Price to beat on a one-way flight from Boston Logan Intl to Portugal.
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Find flight deals from Boston to Portugal

Cheapest flights from Boston to Portugal
Explore the most affordable flight options available from Boston to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 25, 2025.

This PLAY deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure PLAY is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/27:15 pmBOS - FAO
1 stop20h 30mPLAY
Wed 5/79:45 pmFAO - BOS
1 stop25h 05mPLAY
Deal found 3/23$413
This Orbitz deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/97:15 pmBOS - FNC
1 stop19h 40mPLAY
Tue 9/163:55 pmFNC - BOS
1 stop30h 55mPLAY
Deal found 3/24$480
This Mytrip deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/27:15 pmBOS - FAO
2 stops21h 25mMultiple Airlines
Sat 5/177:00 amFAO - BOS
2 stops15h 50mMultiple Airlines
Deal found 3/24$500
This SmartFares deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/209:15 pmBOS - PDL
1 stop12h 15mMultiple Airlines
Sat 10/256:05 pmPDL - BOS
Nonstop5h 45mMultiple Airlines
Deal found 3/24$508
This FlightHub deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/219:20 pmBOS - PDL
Nonstop4h 55mAzores Airlines
Thu 11/275:55 pmPDL - BOS
Nonstop6h 10mAzores Airlines
Deal found 3/25$510
This oojo deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/25:40 pmBOS - FAO
1 stop35h 15mScandinavian Airlines
Sat 11/156:45 pmFAO - BOS
1 stop26h 05mScandinavian Airlines
Deal found 3/24$521
This Booking.com deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/1410:40 pmBOS - PDL
1 stop16h 00mTAP AIR PORTUGAL
Tue 10/2110:45 amPDL - BOS
1 stop13h 20mTAP AIR PORTUGAL
Deal found 3/24$522
This FlightHub deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/2510:20 pmBOS - PIX
2 stops8h 35mMultiple Airlines
Fri 10/3112:45 pmPIX - BOS
2 stops35h 20mMultiple Airlines
Deal found 3/24$522
This FlightHub deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/265:40 pmBOS - OPO
1 stop12h 20mScandinavian Airlines
Wed 9/1011:50 amOPO - BOS
1 stop32h 45mScandinavian Airlines
Deal found 3/24$524
This Booking.com deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/209:15 pmBOS - HOR
1 stop8h 00mMultiple Airlines
Mon 10/279:50 amHOR - BOS
2 stops38h 15mMultiple Airlines
Deal found 3/23$526
This FlightHub deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2211:15 pmBOS - OPO
Nonstop6h 40mTAP AIR PORTUGAL
Tue 10/79:00 amOPO - BOS
1 stop16h 05mTAP AIR PORTUGAL
Deal found 3/24$529
This Kiwi.com deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/710:50 pmBOS - OPO
1 stop17h 30mMultiple Airlines
Thu 10/1610:30 pmOPO - BOS
2 stops27h 45mMultiple Airlines
Deal found 3/24$533

Cheapflights Fare Finder

Customize your flight search to find flights from Boston to Portugal that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 25, 2025.
Use the filters below to find and compare flights from Boston to Portugal that are best for you.

Fly from

Boston

Fly to

Portugal

Route

Depart

Return

Price

BostonFaro

BOS - FAO

BOSFAO

Boston Logan Intl

Fri 5/2

7:15 pm-8:45 pm

1 stop20h 30m

Faro

Wed 5/7

9:45 pm-5:50 pm

1 stop25h 05m

$413

BostonFunchal

BOS - FNC

BOSFNC

Boston Logan Intl

Tue 9/9

7:15 pm-7:55 pm

1 stop19h 40m

Funchal Madeira

Tue 9/16

3:55 pm-5:50 pm

1 stop30h 55m

$480

BostonFaro

BOS - FAO

BOSFAO

Boston Logan Intl

Fri 5/2

7:15 pm-9:40 pm

2 stops21h 25m

Faro

Sat 5/17

7:00 am-5:50 pm

2 stops15h 50m

$500

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Thu 5/15

4:30 pm-11:40 am

1 stop14h 10m

Porto

Mon 5/19

12:20 pm-7:50 pm

1 stop12h 30m

$529

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Mon 4/7

10:50 pm-9:20 pm

1 stop17h 30m

Porto

Thu 10/16

10:30 pm-9:15 pm

2 stops27h 45m

$533

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Mon 5/12

10:50 pm-8:35 pm

1 stop16h 45m

Lisbon Humberto Delgado

Thu 5/22

2:00 pm-9:05 pm

1 stop12h 05m

$545

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Thu 5/15

7:15 pm-8:20 pm

1 stop20h 05m

Lisbon Humberto Delgado

Mon 5/26

9:25 pm-5:50 pm

1 stop25h 25m

$546

BostonLisbon

BOS - LIS

BOSLIS

Boston Logan Intl

Mon 9/8

9:15 pm-9:35 pm

1 stop19h 20m

Lisbon Humberto Delgado

Tue 9/16

9:10 am-9:55 pm

1 stop17h 45m

$548

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Sun 5/11

9:20 pm-11:40 am

1 stop9h 20m

Porto

Sun 5/18

8:15 am-7:50 pm

1 stop16h 35m

$551

BostonPorto

BOS - OPO

BOSOPO

Boston Logan Intl

Sun 4/6

11:55 pm-9:20 pm

1 stop16h 25m

Porto

Sun 6/8

10:00 pm-9:05 pm

1 stop28h 05m

$553

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/25

Showing 1-10 of 60 results
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Best time to book a flight from Boston to Portugal

Have a flexible travel schedule? Discover the best time to fly to Portugal from Boston with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Boston to Portugal

What is the cheapest month to book a flight from Boston to Portugal?

Currently, January is the cheapest month in which you can book a flight from Boston to Portugal (average of $612). Flying from Boston to Portugal in June is currently the most expensive (average of $1,219). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from BOS to PT?

Find hourly flight availability from Boston to Portugal. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 25, 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 17% on flights from Boston to Portugal by exploring options for tickets in the morning.

What is the cheapest day to fly from Boston to Portugal?

Use this chart to determine the cheapest time to fly round-trip from Boston to Portugal. Price data was last updated on November 3, 2024.

Travelers seeking maximum savings on their Boston to Portugal flight should consider departing on Tuesday mornings when fares are most often at their lowest. Friday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Portugal by month

Plan your trip to Portugal by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Portugal ranges from 0.2 - 4.8 inches per month. December is typically the wettest month, when rainfall can reach 4.8 in. July is typically the driest time to visit Portugal when rainfall is around 0.2 in.

Temperature in Portugal by month

Plan your trip to Portugal by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Portugal, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

Reviews of airlines servicing Portugal

Get insights into the airlines that provide service to Portugal. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Portugal. Reviews last updated March 25, 2025.
Read reviews from past customers who have flown Delta, KLM and Azores Airlines from Boston to Portugal. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,890 reviews

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,890 reviews
Delta
8.0
Very good
7,890 reviews

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,318 reviews
Delta
8.0
Very good
7,890 reviews

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Azores Airlines
7.6
Good
63 reviews
Delta
8.0
Very good
7,890 reviews

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Finnair
7.6
Good
1,266 reviews
Delta
8.0
Very good
7,890 reviews

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
SWISS
7.5
Good
1,569 reviews
Delta
8.0
Very good
7,890 reviews

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from Boston to Portugal. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Boston to Portugal?

    Located just 2.6 mi from the city center, Boston Logan Intl (BOS) is the airport most travelers will use when flying to Portugal from Boston.

  • How popular is this Boston to Portugal flight route?

    This flight path from Boston Logan Intl to Portugal was viewed by 259 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • What are the cheapest airlines to fly from Boston to Portugal one-way?

    The cheapest airline one-way is Azores Airlines, with whom users have recently found tickets for as low as $250. However, be on the lookout for offers from TAP AIR PORTUGAL and Vueling, as they are both options that can get you from Boston to Portugal for a low price.

  • What are the most popular routes from Boston to Portugal?

    While some choose either Boston Logan Intl - Ponta Delgada Nordela or Boston Logan Intl - Porto, Boston Logan Intl - Lisbon Humberto Delgado is the most popular route from Boston to Portugal.

  • What are the most reliable airlines from Boston to Portugal?

    No one likes to see their flight delayed. When booking a flight from Boston to Portugal consider choosing KLM (83%), Air France (83%) or Delta (83%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Boston to Portugal?

    Looking for the cheapest flight from Boston to Portugal? While on average our users pay $2,141, our data indicates the cheapest price to be $257. The most popular route (Boston Logan Intl - Lisbon Humberto Delgado), is priced around $370.

  • Can I find deals for flights from Boston to Portugal that include hotel bookings?

    Yes. In addition to deals on Boston to Portugal flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Boston to Portugal?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boston to Portugal.

  • Can I find deals for business class flights from Boston to Portugal?

    Yes. Cheapflights offers flight deals from Boston to Portugal by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Boston to Portugal?

    Currently, January is the cheapest month in which you can book a flight from Boston to Portugal (average of $612). Flying from Boston to Portugal in June is currently the most expensive (average of $1,219). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Boston to Portugal

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from Boston to Portugal

Discover the top 10 airlines that operate flights from Boston to Portugal. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 25, 2025.
AirlineCheapestAverageFlexibilityOn-time
LEVELCheapest$260Average$682FlexibilityNo cancel feeOn-timeN/A
Scandinavian AirlinesCheapest$323Average$681FlexibilityNo cancel feeOn-time77%
PLAYCheapest$332Average$509FlexibilityNo cancel feeOn-timeN/A
VuelingCheapest$446Average$692FlexibilityNo cancel feeOn-time88%
British AirwaysCheapest$488Average$942FlexibilityNo cancel feeOn-time70%
IberiaCheapest$502Average$768FlexibilityNo cancel feeOn-time77%
SWISSCheapest$503Average$744FlexibilityNo cancel feeOn-time79%
DeltaCheapest$516Average$911FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$517Average$753FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$519Average$763FlexibilityNo cancel feeOn-time71%
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